Determining age-related developmental changes in body size (i.e., height and weight) or weight relative to height (BMI) is inadequate for understanding the actual changes that occur, because the body is composed of many different tissues. Even within individuals, changes in body composition occur over time with changes in nutrition, physical activity, and aging. Body weight is a general descriptor of an individual’s total body mass, whereas body composition includes information on various ...
The aim of this study was to determine the effects of age and practice on the control and coordination of fingertip forces on a precision grip isometric tracing task. Performance data were analyzed for time and accuracy for task phase (increasing/decreasing force) and target location (approaching/departing). All groups increased speed and accuracy, and decreased variability (SD) of force tracing with practice (p < .
The water-immersion recovery technique consists of covering part of the body, or the whole body, in water. Contrasting water temperature (CWT), which consists of alternating immersion in cold and hot water. Based on the assumption that immersion in varying depths of warm water may be more beneficial than simple immersion, recent work has studied the effects of both water immersion and hydrostatic pressure on early recovery (Wilcock, Cronin, and Hing 2006).
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